regroup and factories
(ii) 15xy + 6x + 10y + 4
(v) 3xy - 4y - 3x + 4
ii) 12x - 8 + 3xy - 2y
(iii) 4x2 - 16xy - 3x + 12y
(vi) ab + 4a - 3b - 12 92
Answers
Answered by
1
15xy + 6x + 10y + 4
=(15xy - 6x) + (-10y + 4)
=3x(5y - 2) - 2(5y - 2)
(5y-2)(3x - 2).
__________________________________
3xy - 4y - 3x + 4
3xy - 4y - 3x + 4
= y × (3x - 4) - 3x + 4
= y × (3x - 4) - (3x - 4)
= (3x - 4)(y - 1)
__________________________________
12x - 8 + 3xy - 2y
=4 (3x-2) + y(3x-2)
=(3x-2) (y+4)
__________________________________
4x2 - 16xy - 3x + 12y
= 4x^2 - 3x - 16xy - 12y
= x ( 4x - 3) - 4y (4x - 3)
= (4x - 3)(x - 4y)
__________________________________
ab + 4a - 3b - 12
=ab +4a-3b-12 = (ab-3b) + (4a-12)
=b(a-3) + 4 (a-3)
=(a-3) (b+4)
=ab + 4a-3b -12 = (a-3) (6+4)
Similar questions